LG has built an interesting troubleshooting feature into some of their washing machines. This video shows the encoded audio it will output if you use the right button combination. You’re supposed to hold your phone up to the machine while talking to customer service and they’ll be able to get some type of debugging information from the dial-up modem type of sounds. If you end up decoding this audio we want to know about it! [Thanks Pedro]

MicroSD card adapter for Raspberry Pi

[TopHatHacker] was surprised to see a full-sized SD card slot on the Raspberry Pi. His temporary solution to get his microSD card working was to uses a miniSD adapter. He cut away the case and bent the pins until they lined up with the microSD card.

Re: LG Smart Diagnostics, I found interesting patents titled DIAGNOSTIC SYSTEM AND METHOD FOR HOME APPLIANCE. Go to patents.google.com, search for DIAGNOSTIC SYSTEM AND METHOD FOR HOME APPLIANCE, click on one of the results, then click Download PDF. The actual implementation may vary from the patent, but hopefully the information is a good starting point. I see “zero” is 2.6 KHz tone and “one” is 2.8 KHz tone. I don’t have enough motivation right now to wade through the patentese to understand the higher level data structures and learn enough audio manipulation to analyze if the sound from the video matches.